The Roadie Backpack 20 will fit 1-2 mirrorless or DSLR cameras (up to Pro size with grip) with 6-8 lenses (up to 400mm f2.8), or Canon, RED, Sony cine camera with 3-5 lenses, plus audio gear (headphones, recorder), tripod, monopod or shotgun mic, and a laptop up to 17 inches (43 cm). Also fits DJI Mavic and other compact drones. At 20 inches (51 cm) tall, this backpack meets most international carry-on regulations.